Surf Forecasts:
Kohala Lighthouse surf forecast from 29 Aug 2026:
- Most powerful swell: Saturday 5 Sep, 2PM (local time) - 11ft (3.5m), 10s period, ENE swell with 2,203 kJ wave energy.
Best Forecast Surf Conditions for Kohala Lighthouse this week:
The most powerful waves expected at Kohala Lighthouse in the next 16 days are 3.5m 10s and forecast to arrive on Saturday (Sep 05) at 2PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 11s period and expected on Saturday (Sep 05) at 5AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2PM (Sat 5th Sep) | 11ft (3.5m) 10s |
Table - best surf conditions forecast for Kohala Lighthouse over the next 16 days.
The Lowdown
G’day, Rusty here. Let’s have a look at what’s coming up for Kohala Lighthouse (Big Island).
Honestly, the next couple of weeks are a real mixed bag. The first week and a half is pretty grim – strong cross-shore winds and lumpy, messy conditions dominate right through. There’s some size on offer, but the quality just isn’t there for a proper paddle session. The whole setup is more interesting for kite surfing than paddle surfing for most of that time.
The real standout arrives on Friday, 11th September. We get a morning of glassy conditions with an offshore breeze, and the swell is a solid 8ft from the east. Wave energy is strong (1145), but it’s a short-period 7-second swell, so while there’s push, it won’t have that deep groundswell grunt. This is the best window – clean, lined-up waves, but at that size it’s for experienced surfers only. The water temp is 81°F, which is pretty normal for this time of year.
Saturday, 12th September also looks decent, with glassy mornings both days. Saturday morning has a smaller 6ft east swell with good energy (658), and light winds. It’s a bit more manageable than Friday, but still not a beginner wave.
Once we hit Sunday, 13th September, the wind picks up again and the lumpy cross-shore returns, so that’s really your window – Friday and Saturday mornings are the picks.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Mon morning. Warm (max 26°C on Sat morning, min 25°C on Sat morning). Mainly fresh winds. | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Wed morning. Warm (max 26°C on Tue morning, min 24°C on Thu night). Mainly fresh winds. | ||||||||||||||||||||
Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | ENE 6 | ENE 12 | ENE 7 | NE 7 | NE 7 | ENE 7 | NE 8 | ENE 8 | ENE 8 | ENE 8 | NE 8 | NE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 9 | ENE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 216 | 1033 | 215 | 200 | 194 | 159 | 388 | 374 | 402 | 384 | 418 | 381 | 322 | 494 | 303 | 327 | 435 | 398 | 488 | 490 | 569 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross | cross | cross | cross | cross | cross-on | cross | cross | cross-on | cross |
High Tide | 3:49PM0.77m | 4:22AM0.66m | 4:10PM0.70m | 5:06AM0.69m | 4:30PM0.63m | 5:57AM0.70m | 4:45PM0.56m | 7:03AM0.70m | 4:47PM0.49m | 8:35AM0.71m | 10:21AM0.74m | ||||||||||
Low Tide | 9:30AM0.17m | 10:15PM0.14m | 10:10AM0.23m | 10:36PM0.12m | 10:56AM0.31m | 11:01PM0.11m | 11:52AM0.38m | 11:31PM0.11m | 1:21PM0.45m | 00:09AM0.12m | 1:05AM0.15m | 2:40AM0.17m | |||||||||
 |  |  | | | |  | |  | | | | | | | | | | | |  | |
 | 6:05 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — |
 | — | 6:40 | — | — | 6:39 | — | — | 6:38 | — | — | 6:37 | — | — | 6:37 | — | — | 6:37 | — | — | 6:36 | — |
mm | — | — | — | — | — | — | 1 | — | 1 | — | — | — | 1 | — | 2 | — | — | 1 | — | — | 3 |
Temp °C | 26 | 26 | 25 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 25 | 25 | 26 | 25 |
Feels °C | 24 | 23 | 22 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 25 | 25 | 24 | 25 | 23 | 23 | 22 | 22 | 22 | 21 |
Swell 1 Height (m) Direction Period (s) | E 13 | W 10 | E 12 | E 11 | E 11 | E 10 | SSW 15 | SW 14 | SW 14 | SW 14 | W 12 | E 13 | E 14 | W 10 | E 13 | E 12 | E 12 | E 13 | E 13 | ESE 11 | ESE 11 |
| kJ | 161 | 7 | 99 | 86 | 58 | 50 | 21 | 8 | 8 | 8 | 11 | 32 | 37 | 8 | 215 | 193 | 102 | 165 | 116 | 107 | 103 |
Swell 2 Height (m) Direction Period (s) | W 10 | SW 17 | SW 16 | SW 16 | SW 15 | SSW 15 | W 11 | W 12 | W 12 | W 12 | E 15 | W 11 | E 12 | SW 13 | SE 11 | ESE 12 | ESE 11 | ESE 11 | ESE 12 | E 12 | E 12 |
| kJ | 7 | 11 | 11 | 10 | 9 | 22 | 2 | 3 | 12 | 11 | 4 | 10 | 26 | 7 | 33 | 52 | 51 | 87 | 90 | 112 | 101 |
Swell 3 Height (m) Direction Period (s) | SW 18 | — | W 11 | W 12 | W 10 | W 11 | W 13 | — | — | E 15 | SW 14 | ESE 10 | ESE 9 | N 11 | W 10 | E 16 | E 15 | W 9 | NNE 8 | W 12 | E 14 |
| kJ | 12 | — | 2 | 11 | 2 | 2 | 3 | — | — | 4 | 8 | 10 | 17 | 2 | 2 | 21 | 41 | 2 | 12 | 3 | 106 |
Wind waves Height (m) Direction Period (s) | ENE 6 | ENE 12 | ENE 7 | NE 7 | NE 7 | ENE 7 | NE 8 | ENE 8 | ENE 8 | ENE 8 | NE 8 | NE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 9 | ENE 8 |
| kJ | 216 | 1033 | 215 | 200 | 194 | 159 | 388 | 374 | 402 | 384 | 418 | 381 | 322 | 494 | 303 | 327 | 435 | 398 | 488 | 490 | 569 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 73 | 69 | 73 | 73 | 57 | 57 | 72 | 73 | 57 | 71 | 57 | 57 | 73 | 73 | 73 | 73 | 57 | 71 | 73 | 73 | 57 |
Best forecast wave conditions in Big Island | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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Information about the Kohala Lighthouse Surf forecast
The above surf forecast table for Kohala Lighthouse provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Kohala Lighthouse can be found by selecting the local surf guide option on the grey menu. Our Kohala Lighthouse surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Kohala Lighthouse) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Kohala Lighthouse may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Kohala Lighthouse is 87 km (54 miles) from Kihei. If you plan a vacation in Big Island, look for hotels and other accommodation in Kihei. Kihei has rooms for a wide range of budgets as well as car hire and transport links.
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